in 1921,michael f. successfully demonstrated in his experiment motor was made of a free hanging wire that was plunged into a pool of mercury .A permanent magnet was placed in the centre of the mercury pool.
Ten years later,it was joseph Henry who built an improved motor based up on faraday's experimentol motor.He constructed a device whose rotating part was on electromagnet witha horizontal axis.The motion resulted in two vertical permanet magnets,alternately attracted and repelled at end of the electromagnet
Advantages and disadvantages:
Some advantages to motors are: Low initial cost long life Low maintenance High efficiency Automated control No fossil fuels Labor cost savings Occupational safety
Some disadvantages are: Portability Demand charges Remote locations Speed control
Uses for motors: Motors have a wide variety of uses, and are commonly found in everyday objects such as cars, clocks, fridges, fans, vacuums, etc.
leo and bryan
History:
in 1921,michael f. successfully demonstrated in his experiment motor was made of a free hanging wire that was plunged into a pool of mercury .A permanent magnet was placed in the centre of the mercury pool.
Ten years later,it was joseph Henry who built an improved motor based up on faraday's experimentol motor.He constructed a device whose rotating part was on electromagnet witha horizontal axis.The motion resulted in two vertical permanet magnets,alternately attracted and repelled at end of the electromagnet
Advantages and disadvantages:
Some advantages to motors are:
Low initial cost
long life
Low maintenance
High efficiency
Automated control
No fossil fuels
Labor cost savings
Occupational safety
Some disadvantages are:
Portability
Demand charges
Remote locations
Speed control
Uses for motors:
Motors have a wide variety of uses, and are commonly found in everyday objects such as cars, clocks, fridges, fans, vacuums, etc.